Struct Description 

pub struct Description {
    pub expression_schema: HashMap<String, ColumnType>,
    pub view_schema: HashMap<String, ColumnType>,
}

The successful result of Table::describe: what a View built from the described config would report, WITHOUT building one.

Fields

expression_schema: HashMap<String, ColumnType>

The type of every expression, before aggregation.

view_schema: HashMap<String, ColumnType>

Equal to View::schema of a View built from the same config.

Trait Implementations

impl Clone for Description

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Description

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Description

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Description

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for Description

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Description